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Finding the Fourth Proportional to 18,347.43, 27,521.16 and 8,484.87

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Solution

The fourth proportional to 18,347.43, 27,521.16 and 8,484.87 is: 12,727.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.43 : 27,521.16 = 8,484.87 : x
  2. Step 2: Convert to fraction form
    18,347.43/27,521.16 = 8,484.87/x
  3. Step 3: Cross multiply
    18,347.43x = 27,521.16 × 8,484.87
  4. Step 4: Simplify right side
    18,347.43x = 233,513,464.85
  5. Step 5: Solve for x
    x = 233,513,464.85/18,347.43
  6. Step 6: Final answer
    x = 12,727.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.